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[PATCH 4.4 27/30] usb: dwc3: exynos fix axius clock error path to do cleanup

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  [PATCH 4.4 27/30] usb: dwc3: exynos fix axius clock error path to do cleanup Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2017-06-19 17:50 +0200

#1669356 — [PATCH 4.4 27/30] usb: dwc3: exynos fix axius clock error path to do cleanup

4.4-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Shuah Khan <shuahkh@osg.samsung.com>

commit 8ae584d1951f241efd45499f8774fd7066f22823 upstream.

Axius clock error path returns without disabling clock and suspend clock.
Fix it to disable them before returning error.

Reviewed-by: Javier Martinez Canillas <javier@osg.samsung.com>
Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 drivers/usb/dwc3/dwc3-exynos.c |    4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

--- a/drivers/usb/dwc3/dwc3-exynos.c
+++ b/drivers/usb/dwc3/dwc3-exynos.c
@@ -148,7 +148,8 @@ static int dwc3_exynos_probe(struct plat
 		exynos->axius_clk = devm_clk_get(dev, "usbdrd30_axius_clk");
 		if (IS_ERR(exynos->axius_clk)) {
 			dev_err(dev, "no AXI UpScaler clk specified\n");
-			return -ENODEV;
+			ret = -ENODEV;
+			goto axius_clk_err;
 		}
 		clk_prepare_enable(exynos->axius_clk);
 	} else {
@@ -206,6 +207,7 @@ err3:
 	regulator_disable(exynos->vdd33);
 err2:
 	clk_disable_unprepare(exynos->axius_clk);
+axius_clk_err:
 	clk_disable_unprepare(exynos->susp_clk);
 	clk_disable_unprepare(exynos->clk);
 	return ret;

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